Self-leveling marine dining-table



(No Model.) 2 Sheets-Sheet 1.

J. H. LASKEY. SEEE LEVELING MARINE DINING TABLE. A No. 604,831. PatentedMay'31, 1898.

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(No Model.) 2 sheets-sineet 2.

J. H. LASKEY. SELF LEVELING MARINE DINING TABLE. N0. 604,831. PatentedMay 31, 1898.

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JOHN HENRY LASKEY, OF BOSTON, MASSACHUSETTS.

SELF-LEVELING MARINE DININGHTABLE.

SPECIFICATION forming part of Letters Patent No. 604,831, dated May 31,1898. Application filed December 22, 1896. Renewed November 15, 1897.Serial No. 658,627. (No model.)

To @ZZ whom t may concern,.-

Be it known that I, JOHN HENRY LAsKEY, a citizen of the United States,and a resident of Boston, in the' county of Suffolk and State ofMassachusetts, have invented certain new,

and useful Improvements in Self-Leveling Marine Dining-Tables, of whichthe following is a specification.

My invention relates to improvements in marine dning-tables, and has forits object to provide a simple and effective mechanism whereby the tableand the people will always be level when the ship rolls, the table to beplaced longitudinally in the ships cabin.

The invention comprises a table pivoted longitudinally in the center onupright supports secured to the floor of the cabin and uprightsconnected with two shafts running longitudinally in the center of thetable top and bottom. The top shaft forms the pivot and the bottom onethe supports for the chairs. From these uprights and at right angles tothe shafts, at about ten inches from the floor of the cabin, thereextend oth er shafts adapted to support the platform for the feet of thepeople. The chairs are secured to the lower center shaft and aresupported by a brace where they pass through the platform. On the deckis placed a shaft sliding in bearings on either side of the center ofthe table, provided with a stiff spiral spring and resistingcollarssecured to said shaft, a hole being made in the end of said shaft, inwhich is secured a rope that passes over a swiveled block and is securedto the lower shaft. The object of this spring is to act as acounterbalance for a difference of two or three people more on one sideof the table than on the other. I also provide a locking device WherebyI can lock the table so that the top will move with the deck, making itstationary.

The invention consists in certain features of construction andcombination of parts, as will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specication, in which similar gures of reference indicatecorresponding parts in all the views.

Figure l is an elevation in section on line 00 on. Fig. 2 is a detailside view of the locking mechanism. Fig. 3 is a detail side view of thecounterbalance mechanism. Fig. 4 is a side elevation of table.

In the said drawings, IO represents the standards and main support uponwhich the table swivels. i

ll is the top of table, secured to the brackets l2.

13 are the upright shafts that connect the longitudinal shafts top andbottom.

16 are the cross-shafts that support the platform. v

I4 is the coupling that connects the crossshafts 16 with the upright 13.

l5 is the platform.

1 7 are braces secured to the platform and supportin g the chairs.

18 is the seat-support secured to cap 19. Cap 19 is secured to shaft 20.

30 are the revolving seats mounted on sup ports 18.

36 is the deck.

23 is the friction-wheel.

Shafts 2l, running longitudinally, form the pivots for the structure inbearings formed on the top of the standard.

22 is a friction-band adj usted by screw 24, said band being-,heldpermanent and secured to upright 10. Shaft 2O extends longitudinally andis connected to shaft 21 by upright shafts 13, on which are mounted caps19, carrying seat-supports 18.

28 is a shaft that operates the locking device carried by brackets 29.

43 is a pulley secured to end of shaft 28, to which is secured a rope44, connected to levers 34. On the other end of shaft 28 isI se* cured alever 26 for operating the locking device.

27 is a quadrant provided with a notch to receive the latch 45 on thelever.

When the lock-shaft 3l is withdrawn from the standard, the structure isfree to move to the roll of the ship.

35 is a bracket secured to shaft 20, to which crank or lever 34 ispivoted.

46 are the bearings through which shaft 3l slides, said shaft providedwith a collar for resistance of spring 32.

33 is a link connection between shaft 3l and lever 34.

37 is a shaft mounted on the deck and slid- IOO ing longitudinally inbearings 3S, said shaft provided with a resisting-collar for spring 39.Shaft 37 is provided with a hole in the end to receive rope 45', passingthrough sheave 40 and secured to shaft 20.

4l is a bearing-block for sheave 40.

25 are the hand-rails running longitudinally through brackets 47,secured to tabletop ll.

In my construction of a marine dining-table herein shown and describedit will be evident that I have devised a simple and effective meanswhereby the table and the people always maintain a level position underall circumstances, making it a luxury to dine on the ocean equal todining on the land.

It will be evident that certain changes may be made in the mechanism ofmy table without departing from the scope of the invention, and hence Ido not limit myself to the exact details of construction and thearrangements of parts herein shown and described.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

l. In a marine dining-table, the combination of a table, an upperhorizon tal shaft upon which it is mounted, a lower horizontal shaft anda seat-support mounted thereon, and provided with a seat, afoot-platform, a support for said platform and a connectionbetween theupper and lower horizontal shafts, said table, seat and platformadapted-to oscillate in unison and maintain positions relative toeachother.

2. In the construction of a marine diningtable, a frame structurecomposed of two longitudinal shafts connected by perpendicular shafts, aplatform mounted on shafts running at right angles and secured to theperpendicular shafts, and seats mounted on the lower longitudinal shaft;all pivoted on uprights, secured to the deck, substantially as shown anddescribed.

3. In the construction of a marine diningtable, the combination of aframe structure pivoted on uprights secured to the deck, a lockingdevice consisting of a shaft running longitudinally with the table andrevoluble in bearings mounted on the upper longitudinal shaft of theframework, a pulley secured to one end of said shaft and a lever andlatch on the other end, a quadrant provided with a notch to receive thelatch, a rope onone end connected to the pulley and having the other endconnected to the levers, said levers connected to the lock-shafts bylinks, and a spring mounted on said shaft to force them into the endstandard, all mounted on the lower longitudinal shaft, substantially asshown and described.

4. In a marine dining-table, the combination of a frame comprisinguprights secured to the deck, and a horizontal shaft, about which itoscillates, and a means for counterbalancing said structure consistingof a shaft slidable in bearings secured to the deck, a stiff spiralspring and resisting-collar on said shaft, a rope or connection from oneend of said shaft and secured to the lower longitudinal shaft, and aswiveled pulley-block secured to the deck and through which the rope orconnection passes.

5. In a marine dining-table, the combination with a stationary supportor frame, and a frame mounted therein and adapted to oscillate andcomprising a table and a seat and seat-support connected and movabletherewith, of means for locking the oscillating frame to the stationaryframe, comprising a spring-actuated shaft slidable in bearings andhaving an end to engage the stationary frame or support, a second shafthaving an operating-lever and pulley, a rope or connection secured tosaid pulley, a bell-crank lever having an arm connected with theslidable shaft and the other arm connected with said rope, a quadrantfixed to the table-support and a latch to detachably engage thequadrant.

6. In a marine dining-table, the combination of the upper and lowerhorizontal shafts and the intermediate vertical upright, a table mountedon the upper shaft, a friction-wheel on said shaft, a friction-bandsurrounding the wheel, the screw whereby the band is adjusted and thestationary support to which the band is secured.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 19th day of December, 1896.

IOO

